:root {
  --brown: #4b2c20;
  --orange: #f9b882;
  --orange-light: #fdeadb;
  --bg: #fffaf5;
  --text: #3a2418;
  --gray: #8a7a70;
  --border: #e7d9cc;
  --danger: #c0392b;
  --success: #4a7c59;
}

* { box-sizing: border-box; }

body {
  font-family: 'Noto Sans TC', sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

a { color: var(--brown); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

/* ---------- Top bar ---------- */
.topbar {
  background: var(--brown);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.topbar .logo { font-weight: 700; font-size: 1.2rem; }
.topbar nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 18px;
  opacity: .85;
}
.topbar nav a:hover, .topbar nav a.active { opacity: 1; text-decoration: underline; }
.topbar .user-info { font-size: .85rem; opacity: .85; }

/* ---------- Cards / forms ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

h1, h2, h3 { color: var(--brown); }

label { display: block; font-weight: 600; margin: 12px 0 4px; font-size: .9rem; }

input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: .95rem;
}
textarea { resize: vertical; }

.btn {
  display: inline-block;
  background: var(--brown);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: .95rem;
  text-decoration: none;
}
.btn:hover { opacity: .9; }
.btn.secondary { background: var(--orange); color: var(--brown); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.small { padding: 6px 12px; font-size: .85rem; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: .9rem; }
th { color: var(--gray); font-weight: 600; }
tr:hover td { background: var(--orange-light); }

/* ---------- Tags ---------- */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
}
.tag.draft { background: #eee; color: #888; }
.tag.sent { background: #d9ecf9; color: #2b6f9b; }
.tag.responded { background: var(--orange); color: var(--brown); font-weight: 700; }
.tag.closed { background: #e0e0e0; color: #777; }

/* ---------- Misc ---------- */
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 200px; }
.muted { color: var(--gray); font-size: .85rem; }
.error { color: var(--danger); font-size: .85rem; margin-top: 6px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }

.thumb-list { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.thumb-list .thumb {
  position: relative;
  width: 90px; height: 90px;
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: grab;
}
.thumb-list .thumb.main { border-color: var(--orange); }
.thumb-list .thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb-list .thumb .remove {
  position: absolute; top: 2px; right: 2px;
  background: rgba(0,0,0,.55); color: #fff;
  border: none; border-radius: 50%;
  width: 20px; height: 20px; line-height: 18px;
  font-size: 12px; cursor: pointer; padding: 0;
}

.tier-row { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.tier-row input { flex: 1; }

.internal-box {
  border: 1px dashed var(--orange);
  background: var(--orange-light);
  border-radius: 10px;
  padding: 14px;
  margin-top: 16px;
}